In ops prometheus we limit the envoy metrics scraped via a relabel config:
# Envoy produces a ton of metrics, but for now we're just interested in
# upstream and downstream requests latencies and counts, as well as connection
# stats. So just keep those and nothing else.
'metric_relabel_configs' => [
{ 'source_labels' => ['__name__'],
'regex' => '^envoy_(http_down|cluster_up)stream_(rq|cx).*$',
'action' => 'keep'
},
]We should do the same for the k8s prometheus instances by default.